Activity Filter Refresh

I upgraded to 3.2 and 1.2.9 and copied global.js and ajax.php to my theme’s _inc directories. Everything seems to be working fine except that my activity stream doesn’t refresh when I change the dropdown filter. Also, I noticed that the forum posts on buddypress.org don’t refresh when I change the sort selector. Is this a known bug? I’ve experienced it using Firefox 5, Chrome, Safari and Opera.